Discrimination of relative spatial position.
Subjects can accurately discriminate small changes in the relative position of features within a pattern. Simple patterns (intersected line segments) can undergo magnification and a variety of transformations without significantly affecting the discrimination thresholds. Features to be localized and compared need not be similar. We suggest that such relative position discriminations could support complex object identification.
De Valois
K K
KK
Group in Physiological Optics, University of California, Berkeley 94720.
Lakshminarayanan
V
V
Nygaard
R
R
Schlussel
S
S
Sladky
J
J
D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D011594:Psychometrics; D012399:Rotation; D012684:Sensory Thresholds / Q000502:physiology